chase



July 1, 1930- AQR. CHASE l 1,769,287

WITNII-:ss Y INVENTOR n 4 H @1755.

ATTORNEYS July 1, 1930.

A. R`. CHASE JTG. Filed Nov. 17, 1,925

3 Sheets-Sheet 5 ATTORNEYS Patented July 1, 1930 v.asa n; omisnonk MIAMI, oKLAnoMA JIG- l' Aliplicationvmea 'November 17, 192e. serial No. 143,901.1.`

,This invention relates ingeneral to anapparatusfor separating ore or other 'mineral fromfrocl or lighter material and more parti'cula'rly 'to an ore jig of thetype wherein. a v pulsating column ofl'water is used in conjunction withv aV ate to effect classification cfa bed vof material. l j y The object of the invention is to provide va jig )of thischaracterwhichis constructed of tank or sheet steel and angle bars or strucf tural steel so organized that the jig ismade up of a plurality of similar detachable cells or units. By virtue of the detachable cell or Vunit,construction the jig can readily be i converted into a rougher, cleaner, chat, yor

sandvv jig. Moreover, Vthe jig can be constructed to fall in either direction. v, Another object resides inthe provision of a wherein-the'pulsationiset.up'v in the column ofy water used toetl'ect classification in the4 bed kof vmaterials operated upon j encounters a 'minimum `of resistance, the water having a free and easy action and` movement which increasesthejcapacity of thel jig and alsomakes possible a more 'efficient operation while reducing the amount of power that need be expended. o 7 A further object isA to provide a jig which byvirtueof the novel features herein mentioned may be of less height, thereby saving the additional elevation of themill dirt that would otherwise be required.k j

A;Another object resides inthe provision of i ay jigfwherein anY adjustable throat, 'is' prol vided toenable the jig to be converted' for use with lighter or. heavier ores kas well as adapted for diverse jigging functions@ ,'Another object is to provide a jig having anadjustable overflow tailboard at the lower lend of each cell or unit of the jig whereby the depth of the bed in each cell'may be varied. *A A j A still Vfurtherobject resides inthe provisionlofa jig having a plurality of chat draw offs in each cell, one chat draw 'off being lotcated at'each end of eachk cell, thereby mal-l i ing it possible to reverse the jig and also' pro- .VidingA for thedraW-ing oil of the excess 'bed `from the upstream chat draw oli vshould this bedesired.` j l j l Other objects and advantages reside in certain novel lfeatures of the construction,`ary rangement and combination of parts whichl will -behereinafter more fully described and i. particularly pointed out in thel appended claim, reference being had to the accompany# ing drawings forming a part vof this specificat ion. t Figure'l ris a view in side elevation showa lng ajig constructed in accordance with lthe '50 present invention, j .j

yFigure 2 is a view in horizontal section on the line 2-72 oI'Figure l, v Y y,Figure 3 is anenlarged fragmentary View partly'in side elevation-andpartly in longi- 35 tudinal verticalv section, i Y Figure 4 is a view in transverse vertical section, ,parts being shown' in elevation for the sake of illustration, and ,n n p Figure.y 5` s a detail View showing how the 7 tail boardsfare adjustably supported.' y Referring to the drawings it vwill be lseen that the jig constituting the. present invention v is made upof a number ofsimilar cells or '1fj units, designatedgenerally ati-1 AEach cell .75

or unit l includes sidewalls 2 and "3 and a semi-circular bottom walllt extending between and merginginto the sidewalls 2 and n 3. v"llhe jig structure Tis Acompleted-'by transversegpartitions'and longitudinal partitions. 80 o l 6, the partitions 5 atvjthe ends of thejig constituting the end 'walls thereof.l The side walls,}.bottom-walls and partitionsare all.' constructed of tank or sheet steel. f U-shaped angle bars 'Z are provided and extend around 8K5 rthe margins-of the sides and bottom of each unit, the U-shaped angle bars y'hthaving flanges 7 which snugly lit againstv andr are rivetedy to the sides and bottom and also having other fv i flanges 7 b which snugly abut and are'riveted` 90 to the partitions 5. The partitions 6 are connected to the partitions and are braced and reinforced by means of angle bars 8 having anges 8EL abutting and riveted to the partition 6 and flanges 8b abutting and riveted to the partitions 5. The jig is supported on beams 9 of channel iron in any suitable manner and preferably by means of legs 10 of angle iron riveted to the channel and to the partit-ions 5. The partitions 5 are of rectan` gular form and proj ect beyond the bottom of the jig, `these partitions being notched to receive the channel beams 9. Angle braces 11 may be provided between certain oi the par titions 5 and a channel beam 9. VOi course,`

the braces 11 as well as the legs12 are riveted to the partitions which they connect.

It is to be understood that suitable packing` may be provided between the partitions and the flanges of the angle'bars which they en-A gage and also between the side and bottom walls and the flanges of the angle bars which they engage. Y

Eachnnit or cell of the jig as V thus constructed has a plunger compartment 15V in whithV a plunger 16 isl operatively itted the pninger being'carried on the plunger stem 1? j havingV an eccentric strap 18 at its upper end c2c-operable with an eccentric 19 pro vided von a lineshaft 20. The line shaft is suitably supported in bearings provided therefor on transverse bars 21 extending between and connected to the ends of the angle bars 7 and 8. Each cell also includes a compartment 25 having a grate 26 which supf parts the bed of material to be classified. The

bolts'or'` other fastening means 28. l It bolts and nuts are employed the partition 6 and adjustable throat plate 27 are provided with a plurality of `selectively registrable bolt holesto aiordthe necessary adjustment. By

- varying the area of the throat the 'i0' ma be adapted vfor use with light or heavy ores aswell as adapted for various diverse jigging functions. The grater 2,6 is made up of aplurality ot spaced grate b ars`29`mounted on a grat-e rest made up of angle bars 30 and 31 which are riveted orotherwise suitably fastened in place on the tank. v

f The partitions 5 at the 'lower end` of each cell carry adjustable tail boards 35, each tail board 35 beingglpcated at the low end of the grate ofthe? adjacent cell and having' vertical'y slots 36 with'which bolts and nuts 37 coact to-hold. the tail board in vertical adjustment. 'The bolts and'nuts also extend through bolt holes provided in the partitions 5. By varying the height of the tail boards 35 the depth oi' the bed or' material being classified, which bed is built up on the grate Q6, is varied.

The Vside wall 3 of each cell or unit has two openings formedv therein, designated at 41 and 4:2, the openings constituting chat draw ods. Usually only one opening is used for drawing oil' the chats and, of course, the other openings at such time is closed by a suitable closure plate which may be releasably secured to the wall 3 by anysuijtable means. Provision of the two chat draw o openings makes it possible to construct the jigy so that it falls either tothe right or to the left. The upstream chat opening may also .be used to vdraw oli the excess bed. In the bottom of each cell or unit a discharge pipe 45 is provided and has a manually controlled valve 46 incorporated therein. The pipe .45. discharges into a chute or other suitable conveyor 47 for carrying away the cleaned ore.

Each cell or unit 'of the jig which applicant provides operates -broadly in accordance with fthe usual practice in that the plunger each cell or unit sets upV pulsations inthe column or" water in the compartment 25 and the pulsations serve to eifect classiiication of material which builds up in a bed on the grate 26. The advantages o'fapplicants invention resides in the rounded bottom which permits the water to partake of the free and easy action and to be pulsated with the expenditure (El less power thany has been required'heretoore.

Another feature resides in the provision of the adjustable throat. The adjustable tail board provides a convenientfmeans for varying the height of the bed in each cell.

The provision of a plurality of'chat draw olis makes the jig'reversible thatis it may be constructed` to tallv in either direction. Along with these advantagesis the advantage of the all steel construction whichis of lessfweight,

Vless bulk, iire'proof as well as more durable andy eiiicient. All of the elements of the jig preferably are constructed of steel? except the plunger and except the walk board that is usually provided along one side vof the jig.

it is obvious, however, that other suitable bers.

AISA R. CHASE. 

